An Object Initially at Rest Suddenly Explodes in Two Fragments $2.6 \mathrm {~kg}$

question 162

Multiple Choice

An object initially at rest suddenly explodes in two fragments of masses $2.6 \mathrm {~kg}$ and $3.3 \mathrm {~kg}$ that move in opposite directions. If the speed of the first fragment is $3.6 \mathrm {~m} / \mathrm { s } \text {, }$ find the internal energy of the explosion.

• A)30 J
• B)30 kJ
• C)38 J
• D)38 kJ

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Definitions:

Maximum Stopping Distance

The longest distance a vehicle can take to come to a complete stop from its highest speed under ideal conditions.

Anti-Compounding Feature

is a safety mechanism in braking systems designed to prevent the simultaneous application of both the service brake and the parking brake, reducing the risk of brake damage or failure.

Trailer Service Brake

The trailer service brake is the main braking system of a trailer, activated by the driver to slow down or stop the trailer while in motion.

Treadle Valve

A dual-circuit service brake actuation valve that meters air from the primary and secondary service reservoirs to the service lines and brake chambers. Also known as a foot valve.